AWE Ltd.’s Waitsia-1 well in the North Perth basin onshore Western Australia has recorded a strong gas flow during tests of the second zone at the field.
The company said the well had achieved flow, constrained by tubing size, of 25.7 MMcfd of gas from the Kingia formation.
When put with the flow of 24.7 MMcfd from the underlying High Cliff Sandstones earlier this month, Waitsia-1 is capable of a combined flow of at least 50 MMcfd, proving the field to be a significant discovery.
The Kingia flow-tested a 15-m interval between 3,333 m and 3,348 m, measured through a 56/64-in. choke at a pressure of 1,530 psi, for about an hour.
AWE said the test program has been designed to determine well deliverability from the two conventional reservoir zones as well as to collect gas samples for compositional analysis.
Managing Director Bruce Clement said it was clearly an outstanding result. He added that the company has now confirmed the flow potential of the two reservoirs. The result will enable AWE to reduce the number of wells, and hence costs of the development program to achieve the targeted production rate of 100 MMcfd of gas.
Engineering and planning for Stage 1 of development is well advanced and early stage production of 10 MMcfd is planned for mid-2016.
In the meantime, testing of Waitsia-1 will continue with a series of flows through various choke settings, rates, and wellhead pressures to glean maximum information for the development work.
